Cultivator



J. W. GRlM Aug. 19, 1930.

CULT IVATOR Filed Dec. 4, 1928 3 Sheets-Sheet 1 Aug. 19, 1930.

J. w. GR IM CULTIVATOR Filed Dec. 1928 3 Sheets-Sheet 3 flrtowaqo.

Patented Aug. 19, 1930 [entree stares VANIA ,.PAT.ENTT QF C Zl'OHN w.Gena, creamer, rnnirsvrvnnrmessreivon on ONE-FOURTH 'rowrriimlu Iermznm'or, ABBOTSTOWN,PENNSYLVANIA, nn ONETFOURTH 1T0 DANIEL n. BRANDTAND 'onE-FoURrHTo UeENn ELGIN, Born on EAST BERLIN, HPENNSYL-V.

ourrrvn ron "Application filed December 4, 1928. Serial No. 323,695

The invention aims to provide a novel form of cultivatorinwhich the soilengaging elementswillibe peculiarly effective in breaking up the earth,in that. they pass through'the soil horizontally, and atrthesametimefoperate like screw conveyors to elevate the soil. Another objectofthe invention is to provide novel ,means whereby the soil engagingelements can be placed close together so that there will be no gapsbetweenthem. A further-object of the invention is to provide novelmeansfor operating and controlling the soil engaging elements, v i I Itiswithin the province of the disclosure to improvegenerally and.tolenhancevthe utility ofgdevices of that type to which the invention,apperta1ns. .v v

With theabove and other objectsinview, which will appear as thedescription proceeds,

, the invention resides in thecombination and arrangement of parts andin the details of construction hereinafterqdescribed' and claimed, itbeing understoodthat, within the -scope of what is claimed, changes inthe prev cise embodiment of the invention shown can be madewithoutdeparting from the spirit 7 of the invention. In the accompanyingdrawingm y Figure 1 showsiniplan, a device constructseed in accordancewiththe invention g Figure 21s a longitudinalsection wherein many partsappear in elevation;

Figure 3 is a vertical section taken through one of the soil engagingmembers anddependent parts; s V

Figure 4c is a transverse section on theline 44 of Figure 3; 1 Figure 5is asectional viewshowing parts of oneof the shafts-;, I 1

Figure 6 is a vertical longitudinal section showing a I modification. IHaving'referencepto the forms shown in Figures 1 to f thedrawings, thereis provided a cultivator comprising a frame 1 including anupperwtransverse bar 2, and a lower transverse bar 3 disposed behind andat therear of the bar 2, as Figure 2'will show, when compared withFigure "1. r i

At the forwardtend of the framerl there a draft hitch 1, of any desiredconstruction,

whereby the frame i-is connectedto, a tractor, apartv ofwhich isshownin: the drawings and designatedby the numeral 5.

The ,construction-ofthe hitchll is such that the forward endof-theframel 'can move both vertically and horizontally with respect to thehind end of; the tractor 5. .The tractor 5-may include an 'engine16,theshaft ofthe engine being marked by the'numeral 7.

The rear end of the shaft 7 ofthe'engine 6- is connected by auniversaljoint 8 to a shaft'section 9 which is'squared in cross section, theshaft section 9fitting in a socket -10,

the construction being such thatlthe shaft section 9 can slidelengthwise'in the socket,

the socketbeing rotated when the shaft sec-" tion 9 isrotated. Theforward end-of ashaft section 11- is secured atv 12 in the; rear endofthe socketlO. The parts 91011 may i On the rearend of the shaft 11there is a bevelled pinion 16 meshing with a bevelled gear 17 securedtoa countershaft 18 extended transversely of the line of advance of thecul- 'tivator, the ends of the shaft 18 being journaled in bearings 19on the .sides'of the: frame 1- There are'bevelled pinions'20 which. are

secured to the countershaft 18. Y l I The bevelledpinions 2O meshwithbevelled gears 21 mounted onsleeves 22. The sleeves 22 are j ournalleclin bearings 23 mountedon -the lower-transverse bar?) of the frame 1.

The sleevesi22 are journaled, also, in bearings 24Ymounted on the axle"=25 of the cultivator, the axle'being carried by bearings 26 Figure 2)on the frame 1 of the machine. The axle 25 carries the rotatable groundwheels 27 that support the cultivator. A platform 28 extendsbetween'thelower transverse bar 3 and the back end of the frame 1. Onthe platform 28, a seat 29 is mounted.

The numeral 30 marks a downwardly and forwardly inclined shaft having asquared end 31 receivedin the sleeve 22. The constructionis such that,although the end 31 i which theshaft 30 turns.

of the shaft can slide in the sleeve 22, rd-

tation will be imparted to the shaft 30 by way of its squared end 31whenthe sleeve 22 is 1 rotated. There may be as many of the shafts 30 asdesired. Six" of them are shown in the drawings, but thisnnmber may beincreased or decreased, as occasion may requlre. On

theclower end of t-he gshaft '30 is secured, at.

32,;a;soilengagingelement in the form of an angeryhav ngna spiral flange33, the auger tapering from its upper end to-1ts lower end.

The flanges 33 of adjacent soil engagingele ments are cut away at theirupper ends, as shown at 34 in Figure This'enables the wide upper ends ofthe soil engaging elements 'or 'angers to be placed in slightlyoverlapping relation, andstill clear each other as they rotate. y a r Ameans; is provided whereby the shafts 30, and with them the soilengagingangers 33, may be adjusted up and down, and with this "end in view, eachof theshafts 30 has collars 35 between which is located a bearing 36 inp The bearings 36 arennited by a connector, in theform of a channel bar37, which extends across the machine from side toside, as Figure 1 willshow. The bar or connector 37 is located below the frame 1, and links38are pivoted to the ends oflit. The upper ends of the links 38 arepivoted to crank arms 39 on an adjustingshaft '40 extended entirelyacross the frame '1, from side to side, and journaled in bearings 41 onthe sides of-the frame 1. A lever 42 is convnected to the shaft and isso placed that it is accessible to a person occupying the seat 49. Thelever 42 carries a latch mechanism 43 cooperating with a segment 44secured to the upper transverse bar 2. The shaft 40 is journaled in thesegment 44.

The engineG onfthe tractor 5"rotat'es the shaft 7, and rotation isimparted to the shaft section 11 by the universal joint 8, the shaftsectionQ, and the socket 10. Theshaft section 11 rotates the bevelledpinion 16,- and the pinion 16',cooperating with the gear 17, rotatestheconntershaft 18. Whenthe countershaft 18 is rotated, the bevelledpinions 20 cooperate with the bevelled gears 21 to rotate the sleeves 22in end bearings 23 and 24, and when the sleeves 22 are rotated, rotationis imparted to the shafts 30, because the ends 31 of the shafts 30 areheld in the sleeves 22 against of the median plane of the machine willturn in one direction, whereas the soil engaging justed by engaging thelatch'mechanism 45 with the segment 44. When the shaft 40 is locked, thearms 39 on the shaft move up and down, the links 38 causing theconnector or bar 37 to move up and down carrying with it the bearings36. The bearings 36 cooperate with the collars 35 to raise and lower theshaft 30, the soil engaging elements 33 being adjusted accordingly withrespect to the surface of the soil. When the shafts 30 are raised orlowered their square ends 31 slip up and down in the correspondinglyshaped bores of the? sleeves 22. I

Itis not necessary that'motive power for the machine be derived from anindependent source such as a tractor. In the form shown in Figure 6, thepower is derived from. one or both of thefground wheels 45, the

wheels 45 being carried by thea xle 46. The axle is jonrnaled inbearings 47' on theframe 48 of'the vehicle. Sprocket Wheels 49 turnedwith the ground wheels 45 and are engaged Figure 1 and does the samework as the shaft 18, and by the same means hereinbefore described, towit, the bevelled pinions 20, the

' gears 21, and other parts shown in Figure 3.

The means for raising and lowering the engaging elements in Figure dismarked as a whole by thennmeral 54, and is ofthe kind hereinbeforedescribed.

So far as operation is concerned, the characteristic feature of Figure 6is that, the

countershaft 52, correspondingto the conn- 'tershaft 18, is rotated bymeans of the sprocket wheels 49 and 51, the chains 50, and the groundwheels 45, rather than by the engine-drivenshaft 11 of Figure 1.

What is claimed is 1. In a cultivator, a wheel mounted frame, dependingshafts journaled on the frame, means for rotating the shafts,'and soilengaging angers on the lower ends of the shafts, the angers havingspiral flanges, and the flanges being cut away so that the flange'of oneauger can clear the flange ofan adjoining auger when the angers arerotated by the shafts.

2. Ina cultivator, a wheel-mounted frame, angers comprising upper andlower parts, the upper-and lower parts of each auger being connected forrotation together, and being telescoped for free right-lineslidingadustment,so' that the lower'parts of the angers "its maybe raised andlowered, means for mounton said single shaft and on the transverse ingthe upper part of each anger on the shaft.

frame for rotation, with the upper and lower In test imony that I claimthe foregoing parts of'each auger in a fixed axis at an angle as my own,I have hereto affixed my signature.

to the soil, means under the control of an operator for impartingright-line sliding movement to the lower parts of the angers, thereby tomove the lower parts of the angers up and down in said axis and toadjust the lower parts of the angers with respect to the soil, andmechanism for rotating the upper parts of the angers.

3. In a cultivator, a wheel-mounted frame, angers comprising upper andlower parts, the upper and lower parts of each anger being connected forrotation together, and being telescoped for free right-line slidingadjustment, so that the lower parts of the angers may be raised andlowered, means for mounting the upper part of each anger on the I framefor rotation, with the upper and lower parts of each anger in afixed-axis at an angle to the soil, a bar extended transversely of theframe, bearings on the bar, thelower parts of the angers being jonrnaledin the bearing and being held against longitudinal movement therein,mechanism connected to v the bar and the frame and under the control ofan operator for raising and lowering the bar, thereby to impartright-line sliding movement to the lower parts of the angers, and tomove the lower parts of the angers up and down in said axis and toadjust the lower parts of the angers with respect to the soil, andmechanism for rotating the upper parts of the angers. V

4. In a cultivator, a wheel-mounted frame, angers comprising upper andlower parts, the upper and lower parts of each anger being connected forrotation together, and being telescoped for free right-line slidingadjust ment, so that the lower parts of the angers may be raised andlowered, means for mounting the upper part of each anger on the framefor rotation, with the upper and lower parts of each anger in a fixedaxis at an angle to the soil, means under the control of an operator forimparting right-line sliding movement to the lower parts of the angers,thereby to move the lowerpartsof the angers up and down in said axis andto adjust the lower parts of the angers with respect to the soil; andmechanism for rotating the upper parts of the angers, said mechanismcomprising bearingson the frame, a transverse shaft jonrnaled in thebearings, intermeshing beveled gears on the upper parts of the angersand on the transverse shaft, a single shaft extended parallel to theline of advance of the vehicle and located approximately midway betweenthe sides of the frame, means for mounting said single shaft forrotation on the frame, and intermeshing beveled gears

